Yeah, I understand the need to get control of the suspect, and apply force as he resists. But once he was cuffed and appeared to be compliant,I don't understand why the officer maintained the position of having his knee on the man's head. Is that a technique that is taught to subdue a resisting suspect?
To the best of my knowledge, since I don’t know what EVERY POLICE DEPARTMENT’S POLICY IS IN THE WHOLE DAMNED WORLD, I would say no, officers are not trained to subdue people by putting their knee on the head. And if this video, the officer’s knee was not on the head. His knee was between the shoulder blades.